■该研究的目的是通过高分辨率计算机断层扫描的多平面重建来评估耳蜗尺寸,这可能有助于诊断不完全分区(IP)畸形。
■该研究包括32例患者,其中64例侧耳蜗被诊断为IP缺陷,而38例无任何缺陷的耳蜗作为对照。基础转弯长度(BL),耳蜗高度(CH),中尖长度(MAL),中顶高,耳蜗长度(A),和耳蜗宽度(B)在重新格式化图像上测量。
■这些患者中有20个耳蜗被诊断为IPI型,34具有II型IP,和10与IP类型III。在IP类型I和III中,MAL值比对照组短(p<0.001,p<0.001)。IPIII型病例的BL值较短(p<0.001)。在IPII案例中,BL和MAL值与对照组重叠。在任何IP类型中,CH与对照组没有显着差异。IPI和III的A和B值显着低于对照组(p<0.01)。对于所有IP类型,A和B值之间存在正相关(p<0.01)。
■关于IP病例中耳蜗大小和形状差异的定量数据将有助于将它们与正常耳蜗区分开。由于A和B值呈正相关,建议A和B值可用于估计IP类型的CDL。
UNASSIGNED: The purpose of the study was to evaluate cochlea dimensions by the multiplanar reconstruction of high-resolution computed tomography that could be useful in diagnosing incomplete partition (IP) malformations.
UNASSIGNED: This study included 32 patients with 64 side cochleae diagnosed with IP defect and 38 cochleae as the control without any defect. Basal turn length (BL), cochlear height (CH), Mid-apical length (MAL), Mid-apical height, Cochlear length (A), and Cochlear width (B) were measured on reformat images.
UNASSIGNED: Twenty cochleae of these patients have been diagnosed with IP type I, 34 with IP type II, and 10 with IP type III. The MAL values are shorter than the control group in IP types I and III (p<0.001, p<0.001). BL values are shorter in IP type III cases (p<0.001). In IP II cases, BL and MAL values overlapped with the control group. CH did not differ significantly from the control group in any IP type. A and B values were significantly lower than the control group for IP I and III (p<0.01). There is a positive correlation between A and B values for all IP types (p<0.01).
UNASSIGNED: Quantitative data about differences in the size and shape of the cochlea in IP cases would help differentiate them from the normal cochlea. Since A and B values showed a positive correlation, it is suggested that A and B values can be used to estimate CDL for IP types.